11638183679 has 4 divisors (see below), whose sum is σ = 11641186320. Its totient is φ = 11635181040.

The previous prime is 11638183673. The next prime is 11638183681. The reversal of 11638183679 is 97638183611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11638183679 - 2⁸ = 11638183423 is a prime.

It is a super-2 number, since 2×11638183679² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11638183679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11638183673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1495499 + ... + 1503260.

It is an arithmetic number, because the mean of its divisors is an integer number (2910296580).

Almost surely, 2^11638183679 is an apocalyptic number.

11638183679 is a deficient number, since it is larger than the sum of its proper divisors (3002641).

11638183679 is an equidigital number, since it uses as much as digits as its factorization.

11638183679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002640.

The product of its digits is 1306368, while the sum is 53.

The spelling of 11638183679 in words is "eleven billion, six hundred thirty-eight million, one hundred eighty-three thousand, six hundred seventy-nine".